topic 2b- states of consciousness Flashcards

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1
Q

consciousness

A

our awareness of ourselves and our environment

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2
Q

biological rhythms

A

the natural cycle of change in our body’s chemicals or functions

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3
Q

circadian rhythm

A

the biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle

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4
Q

REM sleep

A

rapid eye movement sleep; a recurring sleep stage during which vivid dreams commonly occur. also known as paradoxical sleep, because the muscles are relaxed (except for minor twitches) but other body systems are active

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5
Q

alpha waves

A

the relatively slow brain waves of a relaxed, awake state

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6
Q

sleep

A

periodic, natural loss of consciousness– as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation

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7
Q

hallucinations

A

false sensory experiences, such as seeing something in the absence of an external visual stimulus

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8
Q

delta waves

A

the large, slow brain waves associated with deep sleep

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9
Q

insomnia

A

recurring problems in falling or staying asleep

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10
Q

narcolepsy

A

a sleep disorder characterized by uncontrollable sleep attacks. the sufferer may lapse directly into REM sleep, often at inopportune times

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11
Q

sleep apnea

A

a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings

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12
Q

night terrors

A

a sleep disorder characterized by high arousal and an appearance of being terrified; unlike nightmares, night terrors occur during stage 4 sleep, within 2-3 hours of falling asleep and are seldom remembered

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13
Q

dream

A

a sequence of images, emotions, and thoughts passing through a sleeping person’s mind. ___ are notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamer’s delusional acceptance of the content and later difficulties remembering it

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14
Q

manifest content

A

the story line of a dream

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15
Q

latent content

A

the meaning of a dream

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16
Q

REM rebound

A

the tendencry for REM sleep to increase following rEM sleep deprivation (created by repeated awakenings during REM sleep)

17
Q

hypnosis

A

a social interaction in which one person (the hypnotist) suggests to another (the subject) that certain perceptions, feelings, thoughts, or behaviors will spontaneously occur

18
Q

posthypnotic suggestions

A

a suggestion made to a person during hypnosis that he or she acts out the hypnotic trance.

19
Q

dissociation

A

a split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others

20
Q

psychoactive drug

A

a chemical substance that alters perceptions and moods

21
Q

tolerance

A

the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger does before experiencing the drug’s effect

22
Q

withdrawal

A

the combination of physical and mental effects a person experiences after they stop or reduce their use of the substance

23
Q

physical dependence

A

a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is disscontinues

24
Q

psychological dependence

A

a psychological need to use a drug, such as relieve negative emotion

25
Q

addiction

A

compulsive drug craving and use, despite adverse consequences

26
Q

depressants

A

drug (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions

27
Q

barbiturates

A

drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgement

28
Q

opiates

A

opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety

29
Q

stimulants

A

drugs (such as caffeine, nicotine, and the more powerful amphetamines, cocaine and Ecstasy) that excite neural activity and speed up body functions

30
Q

amphetamines

A

drugs that stimulate neural activity, causing speeded-up body functions and associated energy and mood changes

31
Q

methamphetamines

A

mainly used as a recreational drug and less commonly as a second-line treatment for attention deficit hyperactivity disorder(ADHD)

32
Q

ecstasy (MDMA)

A

produces euphoric high and can damage serotonin producing neurons which leads to permanent deflation of mood and impairment of memory

33
Q

hallucinogens

A

psychedelic (“mind manifesting”) drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input

34
Q

LSD

A

a powerful hallucinogenic drug; also known as acid (lysergic acid diethylamide)

35
Q

THC

A

the major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations

36
Q

near-death experience

A

an altered state of consciousness reported after a close brush with death (such as through cardiac arrest); often similar to drug-induced hallucinations

37
Q

dualism

A

the position that reality consists of two separate substances

38
Q

monism

A

the position that reality consists of a single substance, whether this is identified as mind (idealistic monism), matter (natural monism), or god (patheism)